A S S e r i e s H a r d wa r e Ma n u a l1 2 - 1 8_1212.3.4.2 ERROR LED Indicators Blinking Every 0.5 SecondsError codes:ErrorCode Description Solution16#1502 Incorrect parameters Check the parameter in HWCONFIG. Download theparameter again.16#1503 Extension module communication timeout Make sure the module is properly connected to the CPUmodule and turn the modules on again.12.3.4.3 ERROR LED Indicators Blinking Every 0.2 SecondsThis happens when the 24 VDC power supply for the remote module is not sufficient. Check the power supply. If thepower supply is normal, remove the extension module from the CPU module and then check if the SCM remote module isout of order. Error codes:ErrorCode Description Solution16#130324VDC power supply is not sufficient andthen recovered from low-voltage for lessthan 10 ms.Check whether the 24 V power supply to the module isnormal.12.3.5 Troubleshooting for AS01DNET ModulesRefer to sections 12.4.6 and 12.4.7 for more details.12.4 Error Codes and LED Indicators for CPU ModulesA. Columnsa. Error code: If an error occurs in the system, an error code is generated.b. Description: The description of the errorc. CPU status: If the error occurs, the CPU stops running, keeps running, or shows the status you defined for theerror. Stop: The CPU stops running when the error occurs. Continue: The CPU keeps running when the error occurs.d. LED indicator status: If the error occurs, the LED indicator is ON, OFF, or blinks. ERROR: System error DescriptionsModule Type LED indicator DescriptionsCPU Error LEDThere are five types of error indicator states for of the CPU module errors, includingLED indicator ON, OFF, blinking fast, blinking normally, and blinking slowly. Whenthe LED indicator is ON, blinking fast/normally, clear the problems first in order torun the CPU module. When the LED indicator is blinking slowly, indicating awarning type of error codes, it does not require immediate action. Clear theproblems when the module is powered off.Error type:ON: A serious error occurs in the module.
